某校入学测试有50道判断题，规定每答对一题得3分，不答或答错一题扣1分。小强共得82分，那么小强答对的题与不答或答错的题数相差几题？（ ）

A.0.5%

B.1%

C.1.2%

D.1.5%

A.12

B.18

C.9

D.6

A.12

B.13

C.14

D.15

A.30

B.45

C.60

D.72

A.540

B.580

C.600

D.640

A.56

B.64

C.80

D.120

A.20

B.30

C.40

D.50

A.3/10

B.2/5

C.1/2

D.3/5

A. an; the

B. the; a

C. the ;/

D. / ; a

A. writing

B. to write

C. written

D. being written